LED Control Demonstration Code

This is a heavily modified version of the AdvancedWebServer example sketch to demonstrate the control of an LED from a web interface without the use of a bunch of extra libraries.

The LED control was implemented using a form that performs a get with the argument passed to the index page. The index page is checked for arguments, and if found, these are parsed, the LED value is decoded, and the pin is updated. There are probably much cleaner ways of handling this, but my knowledge of making nice html is limited.

It would be pretty easy to implement a toggle LED button, or to generate the text on a single button dynamically, based on the current pin state. At some point, I may implement these as well, and I'll post an update.

There is also support for OTA updates, but this hasn't been tested, so it may not work properly.